Back ground ideas

[Lauderdale45]

Looking for cool background for my 100 gallon fw tank. Thought about cutting a mirror for a background. Give me some ideas and post some pics of your background.

 

[SaltyFresh]

I spray painted my back flat black for a very clean look and I'm pleased. You could even use a deep blue or black bottom with a nice fade to blue for a two tone look

 

[molly100a]

What about mylar, it's lighter than a mirror. In the past I used blue or black vinal from the fabric store. There are so many options.

 

[KlcoKN]

Depending on what you plan on stocking a mirror might cause aggression... Bettas for instance can kill themselves trying to attack "the intruder"